I understand the intent to include all greenhouse gases, but the reality is that while there is a history of emissions control for many gases, there is really no established history for the active *removal* of all gases. The simple fact is that unless I am forgetting something I know of zero proposals to enable the direct atmospheric removal of anything other than CO2.
Are there biologic processes for instance that demand atmospheric N2O or atmospheric CH4 instead of CO2? Perhaps, but none that I am aware of proposed by humans for mitigation purposes. I think Atmospheric Carbon Removal is the closest thing we here have come up with that accurately identifies the category. It distinguishes it from CCS (i.e. flue-gas capture and sequestration) at focuses it specifically on OIF, Lackner trees, and some of David's concepts. Accelerated weathering perhaps. D On Wed, Dec 31, 2008 at 8:08 AM, Mike MacCracken <[email protected]>wrote: > > Dear Andrew--While I have not yet had time to check out your efforts and > offer thoughts on editing, some ideas for the next effort. > > So that you are not just covering the removal of CO2, I would think > something like "Atmospheric composition management" of "Active management > of > atmospheric composition" would be best--you might even have it be a > subheading for "Atmospheric composition" and then have links from > geoengineering-related entries. In addition to the removal ideas for CO2, > you could cover any that arise for methane, and even go back to the ones > proposed for CFCs that included lasers to decompose them, with the laser > beam bounced back and forth between mirrors on mountaintops to get a > sufficiently long pathlength to give high probability of striking a > molecule. > > And, of course, one would want to somehow link this in to mitigation of > GHGs--which would be said to do at the source. And you would need to link > to > ideas about reforestation/afforestation. > > Mike MacCracken > > > On 12/30/08 9:35 PM, "Andrew Lockley" <[email protected]> wrote: > > > > > I am planning to start a new wiki on the various techniques such as > > fake plastic trees, biochar etc, designed to remove GHGs from the > > atmosphere. > > > > To avoid the naming dramas, I suggest the following, but would invite > > new/better suggestions: > > > > Carbon Dioxide removal? (too specific) > > Greenhouse gas removal? (too geeky?) > > Gas Geoengineering? (will anyone know what it means) > > > > A > > > > > > > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en -~----------~----~----~----~------~----~------~--~---
